Articles | Volume 16, issue 9
https://doi.org/10.5194/tc-16-3575-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-16-3575-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Sep 2022
Research article |
| 02 Sep 2022
| 02 Sep 2022
Persistent, extensive channelized drainage modeled beneath Thwaites Glacier, West Antarctica
Department of Earth Sciences, University of Oregon, Eugene, OR, USA
Fluid Dynamics and Solid Mechanics Group, Los Alamos National Laboratory, Los Alamos, NM, USA
Matthew J. Hoffman
Fluid Dynamics and Solid Mechanics Group, Los Alamos National Laboratory, Los Alamos, NM, USA
Stephen F. Price
Fluid Dynamics and Solid Mechanics Group, Los Alamos National Laboratory, Los Alamos, NM, USA
Dustin M. Schroeder
Department of Electrical Engineering, Stanford University, Stanford, CA, USA
Department of Geophysics, Stanford University, Stanford, CA, USA
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Cited
18 citations as recorded by crossref.
- Improved representation of laminar and turbulent sheet flow in subglacial drainage models T. Hill et al. 10.1017/jog.2023.103
- Surging of a Hudson Strait-scale ice stream: subglacial hydrology matters but the process details mostly do not M. Drew & L. Tarasov 10.5194/tc-17-5391-2023
- The contribution of Humboldt Glacier, northern Greenland, to sea-level rise through 2100 constrained by recent observations of speedup and retreat T. Hillebrand et al. 10.5194/tc-16-4679-2022
- Strong Ocean Melting Feedback During the Recent Retreat of Thwaites Glacier P. Holland et al. 10.1029/2023GL103088
- The Antarctic Subglacial Hydrological Environment and International Drilling Projects: A Review Y. Zhou et al. 10.3390/w16081111
- Responses of the Pine Island and Thwaites glaciers to melt and sliding parameterizations I. Joughin et al. 10.5194/tc-18-2583-2024
- The Non‐Local Impacts of Antarctic Subglacial Runoff D. Goldberg et al. 10.1029/2023JC019823
- Basal conditions of Denman Glacier from glacier hydrology and ice dynamics modeling K. McArthur et al. 10.5194/tc-17-4705-2023
- Examining the effect of ice dynamic changes on subglacial hydrology through modelling of a synthetic Antarctic glacier A. Hayden & C. Dow 10.1017/jog.2023.65
- Migration of the Shear Margins at Thwaites Glacier: Dependence on Basal Conditions and Testability Against Field Data P. Summers et al. 10.1029/2022JF006958
- The role of subglacial hydrology in Antarctic ice sheet dynamics and stability: a modelling perspective C. Dow 10.1017/aog.2023.9
- The role of hydraulic conductivity in the Pine Island Glacier's subglacial water distribution Y. Zhang et al. 10.1016/j.scitotenv.2024.172144
- Suppressed basal melting in the eastern Thwaites Glacier grounding zone P. Davis et al. 10.1038/s41586-022-05586-0
- Variations in hydraulic efficiency of the subglacial drainage landsystem control surging and streaming regimes of outlet glaciers É. Ravier et al. 10.1017/jog.2022.107
- Paths forward in radioglaciology D. Schroeder 10.1017/aog.2023.3
- Characterizing sub-glacial hydrology using radar simulations C. Pierce et al. 10.5194/tc-18-1495-2024
- Persistent, extensive channelized drainage modeled beneath Thwaites Glacier, West Antarctica A. Hager et al. 10.5194/tc-16-3575-2022
- Sedimentary Signatures of Persistent Subglacial Meltwater Drainage From Thwaites Glacier, Antarctica A. Lepp et al. 10.3389/feart.2022.863200
16 citations as recorded by crossref.
- Improved representation of laminar and turbulent sheet flow in subglacial drainage models T. Hill et al. 10.1017/jog.2023.103
- Surging of a Hudson Strait-scale ice stream: subglacial hydrology matters but the process details mostly do not M. Drew & L. Tarasov 10.5194/tc-17-5391-2023
- The contribution of Humboldt Glacier, northern Greenland, to sea-level rise through 2100 constrained by recent observations of speedup and retreat T. Hillebrand et al. 10.5194/tc-16-4679-2022
- Strong Ocean Melting Feedback During the Recent Retreat of Thwaites Glacier P. Holland et al. 10.1029/2023GL103088
- The Antarctic Subglacial Hydrological Environment and International Drilling Projects: A Review Y. Zhou et al. 10.3390/w16081111
- Responses of the Pine Island and Thwaites glaciers to melt and sliding parameterizations I. Joughin et al. 10.5194/tc-18-2583-2024
- The Non‐Local Impacts of Antarctic Subglacial Runoff D. Goldberg et al. 10.1029/2023JC019823
- Basal conditions of Denman Glacier from glacier hydrology and ice dynamics modeling K. McArthur et al. 10.5194/tc-17-4705-2023
- Examining the effect of ice dynamic changes on subglacial hydrology through modelling of a synthetic Antarctic glacier A. Hayden & C. Dow 10.1017/jog.2023.65
- Migration of the Shear Margins at Thwaites Glacier: Dependence on Basal Conditions and Testability Against Field Data P. Summers et al. 10.1029/2022JF006958
- The role of subglacial hydrology in Antarctic ice sheet dynamics and stability: a modelling perspective C. Dow 10.1017/aog.2023.9
- The role of hydraulic conductivity in the Pine Island Glacier's subglacial water distribution Y. Zhang et al. 10.1016/j.scitotenv.2024.172144
- Suppressed basal melting in the eastern Thwaites Glacier grounding zone P. Davis et al. 10.1038/s41586-022-05586-0
- Variations in hydraulic efficiency of the subglacial drainage landsystem control surging and streaming regimes of outlet glaciers É. Ravier et al. 10.1017/jog.2022.107
- Paths forward in radioglaciology D. Schroeder 10.1017/aog.2023.3
- Characterizing sub-glacial hydrology using radar simulations C. Pierce et al. 10.5194/tc-18-1495-2024
2 citations as recorded by crossref.
Latest update: 29 Jun 2024
Short summary
The presence of water beneath glaciers is a control on glacier speed and ocean-caused melting, yet it has been unclear whether sizable volumes of water can exist beneath Antarctic glaciers or how this water may flow along the glacier bed. We use computer simulations, supported by observations, to show that enough water exists at the base of Thwaites Glacier, Antarctica, to form "rivers" beneath the glacier. These rivers likely moderate glacier speed and may influence its rate of retreat.
The presence of water beneath glaciers is a control on glacier speed and ocean-caused melting,...
